Drag wood-sawing machine.



c. M. BLACKBURN. I

DRAG WOOD SAWING MACHINE.

APPLICATION FILED APR. 9. 1912.

1,263,025, Patented Ap'r.16,1918.

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CEARNEL MITCH BLACKBURN, OF CAVENDISH, IDAHO,ASSIGNQR OF- L. G.PETERSON", QF KENDRICK, IDAHO.

earn-THI D" ro DRAG WOOD-SAWING MACHINE.

To all whom it may concern:

Be it known that I, CEARNEL MITCH BLACKBURN, a citizen of, the UnitedStates, residing at Cavendish, in the county of Clearwater and State ofIdaho, have invented certain new and useful Improvements in DragWood-Sawing Machines, of which the following is a specification.

My invention relates to drag wood-sawing machines.

An important object of the invention is to provide a machine of theabove mentioned character, having means to secure the same to the log tobe cut, for holding the log against movement, in a secure manner.

A further object of the invention is to provide means of the abovementioned 'char acter, which is simple'in construction, and

may be operated in a highly'convenient and expeditious manner.

A further object of the invention is to provide means, whereby themachine may be conveniently shifted or moved longitudinally of the log,from one cut to the other.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a side elevation of a machine embodying my invention,

Fig. 2 is an end elevation of the same, and,

Fig. 3 is a detail section taken on line 33 of Fig. 1.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my invention, the numeral 5 designates asupporting frame, comprising spaced longitudinal beams 6, provided attheir forward ends with depending spikes or holding elements 7, adaptedto penetrate the upper side of the log 8, to be cut.

Extending transversely. of the beams 6 is a rock-shaft 9, journaled inbearings 10, rigidly attached to the forward end of the beams 6. Rigidlyconnected with the rockshaft 9, near one end thereof, is a leverll,operating in proximity to a stationary quadrant 12, and equipped withlatch means 13, to coact therewith, whereby the lever may be locked inthe desired angular position.

Rigidly connected with the rock-shaft 9 at a point preferablyequidistantly spaced from the ends thereof, i'sa crank 14, pro-Specification of Letters Patent. Patented Apr. 16, 1918.. Applicationfiled April 9, 1917. Serial N o. 160,870. 7

extends longitudinally of the arm 16. The I arm 16is provided at itslower end with a holding dog 18, coacting with the prongs 7, yl lhiphconstitute holding means to engage 'Rigidly secured to the upper end of,the crank 1 L are arms 18, having horizontal eX-' tensions 19, whichcarry a pin or pivot ele: ment 20, upon which is pivoted a rollerorwheel 21. This roller or wheel is adapted'to be swung downwardly forcontact with the log 8, for a purpose to be, described.

Arranged upon the rear portion of the frame 5 is a prime mover, such asan internal combustion engine 22, driving a pulley 23, engaged by a belt24, which drives a pulley 25. The pulley 25 serves to rotate a crank 26,having connection with apitman 27 suitably connected vwith a saw 28,such as a cross-cut saw. This saw engages with the log and cuts thesame, as is obvious. 1 The operation of the apparatus is as folows:

The forward end of the frame 5 is placed upon the log 8, and the teethor prongs 7 engage with the upper side of the log. The dog 18 engagesupon the opposite side of the log, and by swinging the lever 11rearwardly, the dog may be elevated with respect to the log, and thecoacting dog and prongs 7 formed into the log for a desired distance, toeffect a proper holding action betweenthe frame and log. The engine isnow started and the saw placed upon the upper side of the log. The saw28 is reciprocated as is obvious, and the log is cut transversely.

After this action, the saw may be removed forward end of the frame maynow be by themoved, longitudinally of the log, roller 21 contactingtherewith.

It is to be understood that the form of my invention herewith shownanddescribed is to be taken as a preferred example of the same, and:that various changes in thershape,

size, and arrangement .ofparts maybe resorted to without departing fromthe spirit ofthe invention or the scope of the subjoined claims. Havingthus claim: 7

1; In a machine of the character-described, a, frame having one endthereof adapted'to be arranged near a 10g andfprovided with log engaglngmeans; holsting mechan sm to V elevate the said end of the frame to movethe log engaging means out of engagement 'with the log, said mechanismincluding a rolling and extendingtransversely thereof," a crank rigidlysecured to the rock-shaft and adapted for movement toward and awayfr'omthe log; to be cut, a roller pivoted to the crank Copies of this patentmay be obtained for described my invention, I

tolcontact with the log, means to turn the rock-shaft, log engagingmeanssecured to the frame,a.prime mover arranged upon the frame, a sawto cut the log transversely, and Vdr ving-connect1ng means between thesaw and prime mover.

Salinas machine of the character-describ ed,

a frame provided near one end withIlog engaging means, a'rock-shaftsecured to the frame and extendingtransversely thereof, means, to turnthe rock'-shaft andlockthe same in adjustment'at difierent'positions, a

crank rigi dly securedjto. the roek shaftand extending above, the same,an arm ,p voted to the crankjanddependingth'erefrom and provided'nearitslower endwith' a dog, a

roll pivotally connected with the. crank andadapted to be moveddownwardly for contact with the log, a saw to cut the log transversely,a prime mover arranged upon th'eframe, and driving .connecting meansbetween the saw and'prnne mover.

Signed at Kendrick, in the county of Lamb, and State of Idaho, this 22ndday of March, 1917."

GEARN'EL MITCH BLACK-BURN Witnesses:

FRANK W. CONDEE, RALPHVB. KUEBPER.

five cents each. by addressing-the Commissioner-ofBatenta;

Washington, 13:6?

